338 results found displaying 112-114
    
scottraine123
 United Kingdom
Exercise bikes in restaurants or the work place Printer Friendly Version
Basically, society is getting more obese. My idea is if you put exercise bikes in restaurants and the work place. People could be using these and do two things.
1. They will be burning the fats they eat.
2. They could help power the restaurant.
If people are burning what they eat they can get fat. We are running out of fossil fuels and whilst the people are peddling away they will be burning fat and be powering the restaurant. If you have seen back to the future 2 then it is in one of the scenes.
Reward: none 

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KDB
 Canada
Hydraulic car Printer Friendly Version
I am not an engineer but it seems to me that a light car should be able to be propelled for short trips by human power. I suggest a bicycle drive connected to a hydraulic pump that in turn feeds an orbit motor or perhaps directly to an automatic transmission. I suggest hydraulic power rather than mechanical drive because a relatively small hydraulic pump can produce tremendous pressure. Heat from the oil flow could be cooled through the existing oil cooler or directed to an interior heater for cold climates.
It likely could not develop highway speeds but most urban traffic now flows at less than 60km/hour. For longer trips perhaps it could be supplemented with a small gasoline engine similar to those used on bicycles occasionally.
I welcome advice or suggestions.

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Slaughtz
 USA
Pollution Vacuum Printer Friendly Version
We've invented vacuums for dirt on the ground, why not for our air? We have the technology to compress oxygen, why not our pollution? I doubt there is any use for the brown cloud of dirt that lingers on top of cities, so my idea is to suck it up like you would oxygen and either store the containers some where, or launch them into space on the next expedition.
As another, very expensive and expansive idea, we can create a huge (I don't use that word lightly) funnel-like tube, resistant to the atmosphere. This tube can penetrate the atmosphere and suck up all the burdening gases (and maybe everything else with it). It's a very dangerous idea, and I've no idea of the physics.
Reward: Recognition. 

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